Account holders use Kik to text photos, videos and "Kik cards" - which can include YouTube videos, GIFs and drawings - to other users for free.

Why is Kik useful?

Kik is particularly popular with younger teens who generally have a limited texting plan or use an iPod touch because the application gives them access to free messaging.

What do you need to keep in mind about your children and Kik?

The new version of Kik is rated +17 in iTunes because it allows users to send content from other sites like YouTube and Reddit.

The biggest problem is that users often share their private Kik username on other public social networks like Twitter, Instagram or Tumblr.

Any user who knows your child's username can then send them a Kik message. Instagram and Twitter are full of #kikme requests, with teens posting their usernames. There have been many reported cases of inappropriate adult contact because of this.